A Study to Assess the Safety, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of ATG 037 Monotherapy and Combination Therapy With Pembrolizumab in Patients With Advanced Solid Tumors
Locally Advanced or Metastatic Solid Tumors
What this study involves
The registry says this study is recruiting. Individual locations may have different availability.
- Study type
- Interventional
- Phase
- Phase 1
- Age range
- 18 years - Not specified
- Sex eligible
- All sexes
- Healthy volunteers
- Not accepted
- Participants
- 98 Estimated
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
This is a study of ATG-037 Monotherapy and Combination Therapy with Pembrolizumab in Patients with Locally Advanced or Metastatic Solid Tumors
Read the full description
This is a Phase I, Multi-center, Open-label, and Dose-finding Study to Assess the Safety, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of ATG-037 Monotherapy and Combination Therapy with Pembrolizumab in Patients with Locally Advanced or Metastatic Solid Tumors.
Number of subjects :
1. 39-51 subjects for Dose escalation phase part 1
2. Maximum of 18 subjects or Dose escalation phase part 2
3. 24-34 subjects per Dose expansion cohort
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Inclusion Criteria:
1. Provision of signed and dated, written informed consent prior to any study-specific procedures, sampling, and analyses.
2. Aged at least 18 years as of the date of consent.
3. Unresectable Stage III or Stage IV melanoma patients, who have had disease progression on or after at least one prior ICI containing treatment. Patients with mucosal and uveal melanoma types are to be excluded.
4. There is at least one measurable lesion according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
5. Estimated life expectancy of a minimum of 12 weeks.
6. Subjects with acquired immune checkpoint inhibitors resistance (objective response or SD\>6 months).
7. Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 at ICF signature.
8. Females should be using adequate contraceptive measures until 180 days after the end of treatment, should not be breastfeeding.
9. Male subjects should be willing to use barrier contraception, ie condoms, for the duration of the study and 180 days after the final dose of study treatment.
10. Subjects should have adequate organ function.
Exclusion Criteria:
1. Primary central nervous system disease, central nervous system metastatic disease, leptomeningeal disease, metastatic cord compression or carcinomatous meningitis.
2. Prior exposure to a CD73 inhibitor/antibody or adenosine receptor inhibitor.
3. Patients considered to have rapidly progressive disease (from the starting of prior line therapy to disease progression lasting no more than 90 days).
4. Prior therapy with any chemotherapy, immunotherapy, anticancer agents or investigational products from a previous clinical study within 28 days of the first dose of study treatment or within a period during which the investigational product or systemic anticancer treatment has not been cleared from the body.
5. Radiotherapy with a wide field of radiation within 28 days, or radiotherapy with a limited field of radiation for palliation within 14 days of the first dose of study treatment. Subject must have recovered from all radiation related toxicity, not requiring corticosteroids.
6. Prior major surgery (excluding placement of vascular access) within 28 days of the first dose of study treatment or minor surgical procedures ≤7 days.
7. Except for alopecia, platinum-induced peripheral neurotoxicity (≤Grade 2). Any unresolved toxicities from prior therapy greater than Common Terminology Criteria for Adverse Events (CTCAE 5.0) Grade 1 at the time of ICF signature.
8. Received any prior immunotherapy and was discontinued from that treatment due to a Grade 3 or higher irAE (except endocrine disorders that can be treated with replacement therapy) or was discontinued from that treatment due to Grade 2 myocarditis or recurrent Grade 2 pneumonitis.
9. Subjects receiving unstable or increasing doses of corticosteroids.
10. As judged by the investigator, any evidence of severe or uncontrolled systemic diseases, including uncontrolled hypertension defined as a blood pressure (BP) ≥160/100 mmHg despite medical therapy, unstable or uncompensated respiratory and renal disease, active bleeding diseases, allogeneic stem cell transplantation, or any solid organ transplant, etc.
Treatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Not applicable
- Masking
- No masking
ATG-037+Keytruda(Pembrolizumab, MK-3475)
Part I: Dose Escalation Phase of ATG-037 Monotherapy PartII: Dose Escalation Phase and Dose Expansion Phase of ATG-037 in Upfront Combination with Keytruda(Pembrolizumab, MK-3475)
Drug: ATG-037 · Drug: KEYTRUDA ®( Pembrolizumab)
ATG-037 DRUG
Part I : ATG-037 will be administered orally once a day (QD) on D-2, then multiple doses of ATG-037 will be administered orally BID for every day from C1D1. A treatment cycle will be defined as 21 days.
Part II: ATG-037 will be administered orally BID for every day from C1D1.
KEYTRUDA ®( Pembrolizumab) DRUG
Part I: After 2 cycles of ATG-037 monotherapy, eligible participants will receive ATG-037 combination therapy with Keytruda ®(Pembrolizumab) 200mg/Q3W fixed dose for up to 35 administrations (approximately 2 years).
Part II: Keytruda ®(Pembrolizumab) will be administered from C1.
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
Incidence of adverse events and server adverse events
Time frame: One year after last patient first dose
Will be graded according to the NCI-CTCAE Grading Scale version 5.0.
DLT
Time frame: Up to 21 Days
Number of Participants with Dose Limiting Toxicity
MTD
Time frame: Up to 21 Days
Maximum tolerated dose of ATG-037
RP2D
Time frame: Up to 21 Days
Recommended phase 2 dose of ATG-037
Secondary measures
Plasma concentration of ATG-037 and derived PK parameters
Time frame: One year after last patient first dose
To characterize the PK/PDx of ATG-037
Inhibition of CD73 enzymatic activity in plasma
Time frame: One year after last patient first dose
To evaluate the preliminary antitumor activity of ATG-037 monotherapy and combination therapy with pembrolizumab
ORR as per RECIST v1.1 and DOR, DCR, PFS, OS evaluated by the investigators
Time frame: One year after last patient first dose
To evaluate the preliminary antitumor activity of ATG-037 monotherapy and combination therapy with pembrolizumab
Other measures
Expression of related biomarkers in archived tumor tissue by IHC
Time frame: One year after last patient first dose
To explore potential PDx markers and characterize changes of the immune microenvironment following treatment with ATG-037
Changes in soluble CD73 concentration in serum
Time frame: One year after last patient first dose
To explore potential PDx markers and characterize changes of the immune microenvironment following treatment with ATG-037
The number and activation status of immune cells in peripheral blood
Time frame: One year after last patient first dose
To explore potential PDx markers and characterize changes of the immune
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (8)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
8 locations
Calvary Mater NewcastleSydney, New South Wales, AustraliaRecruiting
Pindara Private HospitalBenowa, Queensland, AustraliaRecruiting
Southern Oncology Clinical Research UnitBedford Park, South Australia, AustraliaTerminated
Peninsula & South Eastern Haematology and Oncology GroupFrankston, Victoria, AustraliaRecruiting
One Clinical Research Pty LtdMount Pleasant, Western Australia, AustraliaRecruiting
Chongqing Cancer HospitalChongqing, Chongqing Municipality, ChinaTerminated
Guangdong Provincial People's HospitalGuangzhou, Guangdong, ChinaTerminated
Beijing GoBroad HospitalBeijing, ChinaRecruiting
Study team and timeline
- Lead sponsor
- Antengene Therapeutics Limited
- Study start
- Jun 7, 2022 Actual
- Primary completion
- Aug 30, 2027 Estimated
- Study completion
- Feb 28, 2028 Estimated
- First posted
- Jan 24, 2022 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
Official study title
A Phase I/Ib, Multi-center, Open-label, and Dose-finding Study to Assess the Safety, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of ATG-037 Monotherapy and Combination Therapy With Pembrolizumab in Patients With Locally Advanced or Metastatic Solid Tumors
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Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 11, 2026 · Last registry update: Nov 10, 2026
